Mainframe Developer

Mississauga, ON | 5 - 18 years of experience

Apply By | 21-Jun-2026

Job Description

Employment at Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation to create a workforce that reflects the societies we operate in. Our commitment to culture and diversity is reflected in our people stories and implemented through equitable workplace policies and processes.

Core Technical Skills

• Programming Languages: COBOL (primary), Assembler, PL/I, and JCL (Job Control Language).
• Databases & File Systems: DB2 for z/OS, IMS DB, and VSAM.
• Transaction Processing: CICS (Customer Information Control System).
• Environment & Tools: TSO/ISPF, z/OS operating system, REXX, File-AID, and BMC.
• Debugging & Utilities: RMF, Abend-AID, and system ...